
Wallace serves as the bustling central hub of this mineral-rich district, where the canyon floors are tightly packed with the infrastructure of the early 20th-century silver and lead boom. The map illustrates a landscape transformed by industrial extraction, with the Oregon Railroad & Navigation Co. and Northern Pacific Railroad providing vital links through the mountain passes to connect remote operations like the Bunker Hill and Sullivan Mines and Morning Mines to global markets.
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This is the sole edition of this map. No revisions or reprints were ever made.
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